[NH2:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[S:9]([NH2:12])(=[O:11])=[O:10].[F:13][CH:14]([F:28])[O:15][C:16]1[CH:21]=[CH:20][C:19](/[CH:22]=[CH:23]/[S:24](Cl)(=[O:26])=[O:25])=[CH:18][CH:17]=1.N1C=CC=CC=1>ClCCl>[Cl:8][C:6]1[CH:5]=[CH:4][C:3]([S:9]([NH2:12])(=[O:11])=[O:10])=[C:2]([NH:1][S:24](/[CH:23]=[CH:22]/[C:19]2[CH:20]=[CH:21][C:16]([O:15][CH:14]([F:13])[F:28])=[CH:17][CH:18]=2)(=[O:26])=[O:25])[CH:7]=12-Amino-4-chlorobenzenesulfonamide (200 mg, 0.97 mmol) and (E)-2-(4-(difluoromethoxy)phenyl)ethenesulfonyl chloride (260 mg, 0.97 mmol) were dissolved in anhydrous dichloromethane (5 mL) and flushed with argon. Anhydrous pyridine (0.391 mL, 4.84 mmol) was added and the reaction was stirred at room temperature under an inert atmosphere over night. The reaction was quenched using 2 M hydrochloric acid (20 mL) and extracted with dichloromethane. The combined organic phase was washed with water, dried over magnesium sulfate and concentrated under vacuum to give 426 mg (100% yield) of the title compound.
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